EP2568108B1 - Steuerungssystem für ein Unterwasserbohrloch - Google Patents

Steuerungssystem für ein Unterwasserbohrloch Download PDF

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Publication number
EP2568108B1
EP2568108B1 EP11180155.1A EP11180155A EP2568108B1 EP 2568108 B1 EP2568108 B1 EP 2568108B1 EP 11180155 A EP11180155 A EP 11180155A EP 2568108 B1 EP2568108 B1 EP 2568108B1
Authority
EP
European Patent Office
Prior art keywords
tree
line
production
wing block
production wing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11180155.1A
Other languages
English (en)
French (fr)
Other versions
EP2568108A1 (de
Inventor
William Munro
Robert Karl Voss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vetco Gray LLC
Original Assignee
Vetco Gray LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vetco Gray LLC filed Critical Vetco Gray LLC
Priority to EP11180155.1A priority Critical patent/EP2568108B1/de
Priority to MYPI2012003665A priority patent/MY158295A/en
Priority to NO20120923A priority patent/NO20120923A1/no
Priority to SG2012064911A priority patent/SG188726A1/en
Priority to AU2012216663A priority patent/AU2012216663A1/en
Priority to BR102012022423A priority patent/BR102012022423A2/pt
Priority to GB1215847.3A priority patent/GB2494529B/en
Priority to CN2012103268535A priority patent/CN102979474A/zh
Priority to US13/605,556 priority patent/US9175540B2/en
Publication of EP2568108A1 publication Critical patent/EP2568108A1/de
Application granted granted Critical
Publication of EP2568108B1 publication Critical patent/EP2568108B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/0355—Control systems, e.g. hydraulic, pneumatic, electric, acoustic, for submerged well heads
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/0353—Horizontal or spool trees, i.e. without production valves in the vertical main bore
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/04—Valve arrangements for boreholes or wells in well heads in underwater well heads
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole

Definitions

  • This invention relates to a control system for a subsea well.
  • a control system for a subsea well for example a hydrocarbon production well, comprises a subsea tree and a tubing hanger which carries production tubing.
  • a downhole safety valve typically in the form of a so-called hydraulically operated surface controlled subsurface safety valve (SCSSV).
  • SCSSV surface controlled subsurface safety valve
  • WO 2008/074995 A1 and GB-A-2 398 592 each discloses a control system having the precharacterising features of claim 1.
  • a control system for a subsea well comprising a tree provided with a hydraulic control supply line for use in opening a downhole safety valve as a result of hydraulic pressure in the line, wherein a part of said line is carried by a structure which defines part of the flowpath of production fluid from the well and is subject to the pressure of production fluid from the well in use of the system so that the line is separable in response to a failure of the integrity of said structure, characterised in that: said structure is part of the production fluid flow path downstream of the tree and comprises a production wing block on the tree; and said part of said line Is carried by the production wing block so that the line is separable in response to a separation of the production wing block from the tree.
  • a method of providing a control system for a subsea well comprising:
  • Said part of said control line could be attached to the production wing block by a clamp, typically said control line passing from said clamp to an isolation valve on the tree.
  • said part of said control line passes through the production wing block to the tree, typically passing through the structure to the tree from an isolation valve on the production wing block.
  • reference numeral 1 designates a tree at a wellhead, the tree comprising a tree head 2 and a tree connector 3;
  • reference numeral 4 designates a tubing hanger in the tree head 2, from which production tubing 5 is suspended;
  • reference numeral 6 designates a production wing block (PWB) of the tree, attached to the tree head 2 at an interface 7, the flow of production fluid from the well through the tubing 5 and PWB 6 being indicated by arrows;
  • reference numeral 8 designates a production master valve in the tree head 2, reference numeral 9 designating a production wing valve in PWB 6;
  • reference numeral 10 designates a crown plug of the tree; and
  • reference numeral 11 designates a connector for connecting the PWB 6 to a production flowline.
  • the tree 1 is connected to the wellhead via tree connector 3, an annular sleeve 12 in the connector 3 engaging with a casing string of the well.
  • a DHSV is disposed in the production tubing 5 below the tree 1, hydraulic fluid for an actuator for opening the DHSV being supplied via a safety supply port 13 in the tree head 2 from an isolation valve 14 on the tree head 2 and a DHSV control supply line 15 coupled with valve 14 and clamped to PWB 6 by a clamp 16 on PWB 6.
  • Isolation valve 14 can be opened or closed manually by a remotely operated vehicle or be hydraulically operated. Hydraulic fluid is supplied through line 15, valve 14 and port 13 under the control of a subsea control module at the tree.
  • the port 13 extends down through the tubing hanger 4 (behind the plane of the section comprising Fig. 1 ), and then between the production tubing 5 and the well casing to the actuator of the DHSV. Between clamp 16 and isolation valve 14, the line 15 comprises a break-away portion 17.
  • the tree head 2 is provided with a tree cap (not shown) and a protective plate (not shown) is bolted to shoulders 18 of the tree head 2 to cover and protect items extending from the tree head 2, including PWB 6.
  • portion 17 could be a piece of tubing in line 15 clamped on to the PWB 6 by clamp 16, which tubing breaks when the PWB 6 is pulled away from the tree head 2.
  • the isolation valve 14 is mounted on the PWB 6.
  • a part 19 (provided by a bore in PWB 6) of the control line 15 passes from valve 14 through the body of PWB 6 and through a seal 20 between the PWB 6 and the tree head 2 to port 13 which extends down through tubing hanger 4 to the actuator of a DHSV 21.
  • some causes of failure of the PWB to tree head connection are objects dropped from vessels, snag loads applied via a flow spool connected to the PWB, or unexpected well conditions higher than design pressures, temperatures and corrosion and erosion allowances.
  • the embodiments relate to a so-called “horizontal tree” configuration, the invention is also applicable to a “vertical tree” configuration.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
  • Control Of Fluid Pressure (AREA)
  • Flow Control (AREA)

Claims (10)

  1. Steuersystem für ein Untersee-Bohrloch, umfassend ein Eruptionskreuz (1), das mit einer Hydrauliksteuerungs-Versorgungsleitung (15) zur Verwendung beim Öffnen eines Sicherheitsventils im Bohrloch als Folge von Hydraulikdruck in der Leitung versehen ist, wobei ein Teil der Leitung von einer Struktur (6) getragen wird, die einen Teil des Strömungspfads von Förderfluid aus dem Bohrloch definiert und im Einsatz des Systems dem Druck von Förderfluid von dem Bohrloch ausgesetzt ist, so dass die Leitung als Reaktion auf ein Versagen der Intaktheit der Struktur abtrennbar ist, dadurch gekennzeichnet, dass: die Struktur ein Teil des Förderfluid-Strömungspfads stromabwärts von dem Eruptionskreuz ist und einen Förderventilblock an dem Eruptionskreuz umfasst; und der Teil der Leitung von dem Förderventilblock getragen wird, so dass die Leitung als Reaktion auf eine Abtrennung des Förderventilblocks von dem Eruptionskreuz abtrennbar ist.
  2. Steuersystem nach Anspruch 1, wobei der Teil der Steuerleitung (15) mit einer Schelle (16) an dem Förderventilblock (6) angebracht ist.
  3. Steuersystem nach Anspruch 1, wobei die Steuerleitung (15) von der Schelle (16) zu einem Absperrventil (14) an dem Eruptionskreuz (1) verläuft.
  4. Steuersystem nach Anspruch 1, wobei der Teil der Steuerleitung (15) durch den Förderventilblock (6) zu dem Eruptionskreuz (1) verläuft.
  5. Steuersystem nach Anspruch 4, wobei die Steuerleitung (15) von einem Absperrventil (14) an dem Förderventilblock durch den Förderventilblock (6) zu dem Eruptionskreuz (1) verläuft.
  6. Verfahren zum Bereitstellen eines Steuersystems für ein Untersee-Bohrloch, wobei das Verfahren Folgendes umfasst:
    Bereitstellen eines Eruptionskreuzes (1) mit einer Hydrauliksteuerungs-Versorgungsleitung (15) zur Verwendung beim Öffnen eines Sicherheitsventils im Bohrloch als Folge von Hydraulikdruck in der Leitung; und
    Tragen eines Teils dieser Leitung von einer Struktur (6), die im Einsatz des Systems dem Druck des Förderfluids von dem Bohrloch ausgesetzt ist, so dass die Leitung als Reaktion auf ein Versagen der Intaktheit der Struktur abtrennbar ist, wobei: die Struktur einen Teil des Strömungspfads von Förderfluid von dem Bohrloch definiert, wobei die Struktur ein Teil des Förderfluid-Strömungspfads stromabwärts von dem Eruptionskreuz ist und einen Förderventilblock an dem Eruptionskreuz umfasst; und der Teil der Leitung von dem Förderventilblock getragen wird, so dass die Leitung als Reaktion auf eine Abtrennung des Förderventilblocks von dem Eruptionskreuz abtrennbar ist.
  7. Verfahren nach Anspruch 6, wobei der Teil der Steuerleitung (15) mit einer Schelle (16) an dem Förderventilblock (6) angebracht ist.
  8. Verfahren nach Anspruch 7, wobei die Steuerleitung (15) von der Schelle (16) zu einem Absperrventil (14) an dem Eruptionskreuz (1) verläuft.
  9. Verfahren nach Anspruch 6, wobei der Teil der Steuerleitung (15) durch den Förderventilblock (6) zu dem Eruptionskreuz (1) verläuft.
  10. Verfahren nach Anspruch 9, wobei die Steuerleitung (15) von einem Absperrventil (14) an dem Förderventilblock durch den Förderventilblock (6) zu dem Eruptionskreuz (1) verläuft.
EP11180155.1A 2011-09-06 2011-09-06 Steuerungssystem für ein Unterwasserbohrloch Not-in-force EP2568108B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP11180155.1A EP2568108B1 (de) 2011-09-06 2011-09-06 Steuerungssystem für ein Unterwasserbohrloch
MYPI2012003665A MY158295A (en) 2011-09-06 2012-08-14 A control system for a subsea well
NO20120923A NO20120923A1 (no) 2011-09-06 2012-08-20 Et styringssystem for en havbunnsbronn
SG2012064911A SG188726A1 (en) 2011-09-06 2012-08-31 A control system for a subsea well
AU2012216663A AU2012216663A1 (en) 2011-09-06 2012-09-05 A control system for a subsea well
BR102012022423A BR102012022423A2 (pt) 2011-09-06 2012-09-05 sistema de controle para um poço submarino e método para fornecer um sistema de controle para um poço submarino
GB1215847.3A GB2494529B (en) 2011-09-06 2012-09-05 A control system for a subsea well
CN2012103268535A CN102979474A (zh) 2011-09-06 2012-09-06 用于海底井的控制系统
US13/605,556 US9175540B2 (en) 2011-09-06 2012-09-06 Control system for a subsea well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11180155.1A EP2568108B1 (de) 2011-09-06 2011-09-06 Steuerungssystem für ein Unterwasserbohrloch

Publications (2)

Publication Number Publication Date
EP2568108A1 EP2568108A1 (de) 2013-03-13
EP2568108B1 true EP2568108B1 (de) 2014-05-28

Family

ID=47136976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180155.1A Not-in-force EP2568108B1 (de) 2011-09-06 2011-09-06 Steuerungssystem für ein Unterwasserbohrloch

Country Status (9)

Country Link
US (1) US9175540B2 (de)
EP (1) EP2568108B1 (de)
CN (1) CN102979474A (de)
AU (1) AU2012216663A1 (de)
BR (1) BR102012022423A2 (de)
GB (1) GB2494529B (de)
MY (1) MY158295A (de)
NO (1) NO20120923A1 (de)
SG (1) SG188726A1 (de)

Families Citing this family (8)

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US9528340B2 (en) * 2014-12-17 2016-12-27 Hydrill USA Distribution LLC Solenoid valve housings for blowout preventer
CN104989314B (zh) * 2015-06-12 2017-10-20 美钻能源科技(上海)有限公司 水下泥线采油树及其安装方法
SG10201607879YA (en) * 2015-09-25 2017-04-27 Dril Quip Inc Subsea system and method for high pressure high temperature wells
US10697264B2 (en) 2015-09-25 2020-06-30 Dril-Quip Inc. Subsea system and method for high pressure high temperature wells
NO342043B1 (en) * 2015-12-08 2018-03-19 Aker Solutions As Workover Safety System
CN106639955B (zh) * 2016-12-15 2019-03-29 江苏科技大学 一种自锁式采油树扭转辅助工具
US11773678B2 (en) 2018-12-05 2023-10-03 Dril-Quip, Inc. Barrier arrangement in wellhead assembly
GB2605517B (en) * 2018-12-05 2023-02-22 Dril Quip Inc Barrier arrangement in wellhead assembly

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Also Published As

Publication number Publication date
GB201215847D0 (en) 2012-10-24
SG188726A1 (en) 2013-04-30
GB2494529B (en) 2014-08-13
BR102012022423A2 (pt) 2016-04-19
AU2012216663A1 (en) 2013-03-21
MY158295A (en) 2016-09-30
US9175540B2 (en) 2015-11-03
NO20120923A1 (no) 2013-03-07
GB2494529A (en) 2013-03-13
US20140060850A1 (en) 2014-03-06
CN102979474A (zh) 2013-03-20
EP2568108A1 (de) 2013-03-13

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